re: China launches 4th helicopter carrier

Large fleet aircraft carriers are obsolete now just like the Battleship was in 1941. They're too expensive to build, maintain and defend. And if you lose one its such a blow to your fleet and national pride that it might lose the whole war for you. With hyper accurate long range missiles that be launched from surface ships and submarines I don't see the point of aircraft carriers anymore other than the fact that they're really cool.